Parazoid.net

Seeing as how today is PI day I found this particulary good, but requires you to drop the last ‘e.’

I prefer pie

I’m stuck in an all day conference call of a sick person telling us what we already know, so I might as well get around to posting about the trip I just got back from. All around it was a great trip. I enjoyed Tempe but the workshop itself was more management than technical so that was a bummer but I made some good contacts and had plenty of side conversations. Some points though:

• Flights: I don’t mind flying, but being stuck three people in when you want to go to the bathroom and you have incredible heartburn for 5+ hours is not fun. However while flying out we were chasing the sun as it was setting which was amazing. I had the window on the south facing side so I got to see some incredible gradients and such. And if anyone ever has to pick up baggage in the Phoenix airport, I feel for you.
• Mr. Pibb: There’s a Coca-Cola bottling facility in Tempe so most of the place offer Coke products, including Mr. Pibb!! Something I’m not used to seeing since I’m in the northeast, but it’s amazing.
• Weather: The first day out, the weather was phenomenal, it was like a perfect Spring day. Thursday and Friday however there was some rain or just the feeling of pending rain but not too bad. However, we were sitting outside at a Happy Hour talking about CAS Thursday night, and got hailed on thrice.
• The Big Bang: Thursday night I went out looking for a bar. Being only three blocks away from ASU this was not a difficult task, but which bar to go to first. We walked into a basement bar called “The Big Bang” which advertises itself as a dueling piano bar. Holy Cow! If you are a fan of live music and find yourself in Tempe go to The Big Bang. We had an amazing time. The “I’m only going out for 1 drink” night turned into a night in which we had t o leave at 2:00 because Tempe closes down at 2:00.

So it was a good trip. I was completely exhausted Saturday night when I got back to Albany, but with my love of live music I went straight to Mahoney’s to see Replica. Just a couple more days of not working on projects then I fly down to Orlando for another conference.

That’s right A/C. I walked into my hotel room tonight, and the priorities were 1.) turn on A/C 2.) Scan for wireless networks. I guess more to follow but I’ve been traveling for 12-13 hours so I’m going to go relax.

I had this weird problem at work back in December that I thought I’d share. I had noticed that when I started new gnome-terminals, my prompts read:

I have no name!@urbs-19979

Now that’s weird, but I ignored it since the machine was working and I was in a series of meetings. However, when I started trying to ssh into other systems I was getting told

You don’t exist, go away!

At this point I verbally told my laptop “You don’t tell me no” which caused some weird looks but people moved on just fine. Since the problem was now getting in my way I had to look into it. After a while I had realized that by adding a username to my ssh commands (through -l user or user@host) I could use ssh again. This caused me to think something was wrong with /etc/passwd, and I was right. My user couldn’t read /etc/passwd, fixed the permissions and all was well. I forget what I did to muck up /etc/passwd, but I’m sure if I had been using vipw like you’re supposed to I wouldn’t have had this problem…..but then again I would have missed out on the great gems that programmers leave in their programs.

I’ve got a list of tools I think are cool or useful, so I’m going to start sharing my thoughts of them here….isn’t that the point? So today’s tool is iftop. It can be used to display bandwidth usage on an interface. If you can’t figure out what it does based on the name, their description of the tool lays it out well:

iftop does for network usage what top(1) does for CPU usage. It listens to network traffic on a named interface and displays a table of current bandwidth usage by pairs of hosts. Handy for answering the question “why is our ADSL link so slow?”.

Small and simple tool, what’s not to like. Real good for those times that you know something is eating traffic but don’t know what. Check out screenshots of iftop at http://www.ex-parrot.com/~pdw/iftop/.

Update: While perusing through logs it is clear that people find this page because they are looking for information on how to read iftop output. Looking back at this post I clearly stiffed everybody on that aspect of things, and have wanted to post an update on how to interpret what’s going on in iftop. Luckily Techthrob.com took care of that far better than I would be able to do, so go check out his article How to Monitor Network Traffic in Linux.